Island



(No Model.)

M. CAMPBELL. CLOTH PRESSING- MACHINE.

YINVENTUR'Z UNITED STATES PATENT Carton.

MALCOLM CAMPBELL, OF BOSTON, MASSACHUSETTS, ASSIGNOR TO THE WOONSOCKETMACHINE AND PRESS COMPANY, OF WOONSOCKET,

RHODE ISLAND.

CLOTH-PRESSING MACHINE.

SPECIFICATION forming part of Letters Patent No. 506,469, dated October10, 1893.

Application filed March 13.1893. Serial No. 465,741. (No model.)

.To all whom it may concern.-

Be it known that I, MALCOLM CAMPBELL, of Boston, in the county ofSuffolk and State of Massachusetts, have invented certain new and usefulImprovements in Cloth-Pressing Machines, of which the following is aspecification.

This invention relates to that class of clothpressing machines in whichthe cloth passes around a cylinder under pressure of two concaved headswhich extend partially around the cylinder on opposite sides thereof.

The object of the invention is to give the bearing faces of the presserblocks such a formation as to secure a number of points of bearing ofeach against the cloth, and a pressure of the blocks close up to seams.

Reference is to be had to the annexed drawings and to the letters markedthereon, forming a part of this specification, the same lettersdesignating the same parts or features, as the case may be, whereverthey occur.

Figure 1 shows an end elevation of a sufficient portion of acloth-pressing machine to illustrate the invention. Fig. 2 shows an endelevation of a modified form of presser-block.

The reference letter B designates a pair of presser blocks, which fit onopposite sides of the cylinder A, and are suitably mounted so as toexert a pressure against the cylinder. The bearing faces 0 of thesepresser blocks are each formed in thearc of a circle so as to beconcentric with the surface of the cylinder, and in the bearing face ofeach presser block one or more longitudinal grooves or depressions d aremade, each of such grooves terminating abruptly in sides 11'. Thus eachpresser block will havea plurality of bearing points separated by thegroove or grooves in its bearing face.

In operation, a seam in the cloth under treatment is received in one ofthe grooves or depressions d of the block, and the severalbearing-surfaces, all being in the same circular arc, bear against thecloth. The abrupt termination of the grooves by the sides 01 allows thebearing surfaces to press the cloth close up to the seam. The number ofgrooves in the block may be varied. Fig. 2 shows a block C having asingle groovef.

It will be observed that by myimproved construction of presser-block, agreater extent of bearing-surface is secured while at the same timeprovision is made for a seam.

Having thus explained the nature of the invention and described a way ofconstructing and using the same, though without attempting to set forthall of the forms in which it may be made or all of the modes of its use,it is declared that what is claimed is In a cloth-pressing machinehaving a cylinder around which the cloth passes, a presser block whosebearing face is concentric with the surface of the cylinder and providedwith a longitudinal depression terminating in abrupt sides,substantially as described.

In testimony whereof I have signed my name to this specification, in thepresence of two subscribing witnesses, this 12th day of January, A. D.1893.

MALCOLM CAMPBELL.

Witnesses:

ARTHUR W. ORossLEY, F. PARKER DAVIS.

